Home / 31,664.50-43,701.15-18,236.32

Finding the Fourth Proportional to 31,664.50, 43,701.15 and 18,236.32

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Solution

The fourth proportional to 31,664.50, 43,701.15 and 18,236.32 is: 25,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,664.50 : 43,701.15 = 18,236.32 : x
  2. Step 2: Convert to fraction form
    31,664.50/43,701.15 = 18,236.32/x
  3. Step 3: Cross multiply
    31,664.50x = 43,701.15 × 18,236.32
  4. Step 4: Simplify right side
    31,664.50x = 796,948,155.77
  5. Step 5: Solve for x
    x = 796,948,155.77/31,664.50
  6. Step 6: Final answer
    x = 25,168.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.